Metal column.



PATENTEDDEG. 22, 1903.

J, LAN Z. METAL COLUMN. APPLICATION FILED SEPT 6, 1898,

10 MODEL.

INVENTOR Whiz/W WITNESSES m: mums PETENS co, PnoYoLrmQ. WASHlNGTON, o. c

Patented December 22, 1903.

PATENT OFFICE.

JOHN LANZ, OF PITTSBURG, PENNSYLVANIA.

I METAL COLUMN.

SPECIFICATION formingpart Of Letters Patent NO. 747,441 dated, December 22, 1903.

Application filed September 6, 1898. Serial No. 690,366. (No model.)

provide a new and improved column in which the metal shall be effectively distributed for resisting strain and a stiff strong pole produced.

' In the drawing is shown a column composed of two I-beams, having their webs 2 bent into trough form with central flat bases 3. These bases are riveted directly together by a single row of rivets, thus producing the column. The webs are bent at the bases so that the bodies of the flanges which are diagonally opposite each other are in line with each other,

this arrangement forming a column with four sides at right angles to each other and having two flanges directly opposite and in line with each other. The web portion of the channels may be bent into other forms than that shown without departing from my invention.

What I claim as my invention, and desire to secure by Letters Patent, is

A column composed of two channeled shapes having narrow flat bases secured together, the side portions of the webs being joined to the flat-bases by curved portions located outside the axial plane and curved toward said plane and terminating in flanged heads the outer faces of which are at rightv angles to said axial plane, thereby bringing diametrically opposite flanges into line with each other and one pair of such flanges at right angles to the other pair of such flanges.

In testimony whereof I have hereunto set my hand.

JOHN LANZ. Witnesses:

GEORGE E. BLEMMING, E. SMITH. 

